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Stress-Rupture Testing of 9Cr Steel Weldment


MPLUS No.:  MC-02-013

Relevance to OIT:Creep/stress rupture testing of 9Cr-1Mo steel weldments was done to establish their suitability for elevated temperature and compliance with design allowable requirements of ASME construction codes.  The 9Cr-1Mo steels are high-strength alloys with considerable potential for improving the reliability and efficiency of heat recovery boilers used in pulp and paper operations and chemical reaction vessels and piping systems used by the chemical and petrochemical industries.  This information will guide optimization of filler metal alloys and will provide a scientific basis for evaluating mechanical testing data.

Objective: Creep/stress rupture testing of 9Cr-1Mo steel weldments was done to establish their suitability for elevated temperature and compliance with design allowable requirements of ASME construction codes.  This information will guide further optimization of filler metal alloys and will provide a scientific basis for evaluating mechanical testing data.